Instant Ocean seems to be just as good as some of the more expensive ones. I use Reef Crystals because they were on sale. Used to use IO because it was cheap and readily available. When I run out of Reef Crystals I'll be using Coralife Marine Salt Mix because I got it for $15 the other day.How well does this work for you guys? I'm guessing you really like it to stock up in it
I've used a few different salts and still haven't found one to be loyal to. I used IO back in the day, but it's been years.